S5 DA Di2

£7,299

The all-new 2015 S5 features a whole host of improvements to achieve the marked gains in stiffness, comfort and aerodynamics. A saving of 21.3 watts at 40 kmph and a 35% increase in stiffness (to match the R-series) are the standout features, along with a shorter stack at the headtube for a lower riding position and space for 25 mm tyres.